OCSOSO Dog Collar Soft Mesh Padded 3M Reflective Nylon Breathable Durable Anti-rub with Ring for Small Medium and Large Dogs. &hellip; Prong collar is chrome-plated for durability and feature removable blunt-cut rubber tips on smooth and rounded prongs to prevent injury These great training aids provide a heavy-duty yet safe alternative to standard choke chains Prong collar for dog is the ideal training solution Ruggedly constructed of electronically welded steel for added strength Measures 18-inch length by 3-1/4-inch width.3mm*50cm.